单项选择题

Greater knowledge of the universe could ______ important changes in the outer space traveling.

A．take back
B．break out
C．bring about
D．keep out
<上一题 目录 下一题>
热门 试题

单项选择题
People of one culture moving to a country of another culture may ______ their old ways.
A．keep up
B．give up
C．look back at
D．clear away
单项选择题
The number of students in a foreign languages class ______ usually limited to no more than thirty.
A．have
B．are
C．is
D．were
相关试题